39478491024 has 80 divisors (see below), whose sum is σ = 116577300480. Its totient is φ = 11277463680.

The previous prime is 39478490993. The next prime is 39478491067. The reversal of 39478491024 is 42019487493.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3122187 + ... + 3134805.

It is an arithmetic number, because the mean of its divisors is an integer number (1457216256).

Almost surely, 2^39478491024 is an apocalyptic number.

It is an amenable number.

39478491024 is an abundant number, since it is smaller than the sum of its proper divisors (77098809456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39478491024 is a wasteful number, since it uses less digits than its factorization.

39478491024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21948 (or 21942 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 39478491024 in words is "thirty-nine billion, four hundred seventy-eight million, four hundred ninety-one thousand, twenty-four".